Serial.print("inizializzazione SD 2:"); Serial.println(pass2, BIN); if ( !pass2 ){ Serial.println("Errore init 2:\nThe value one, true, is returned for success and the value zero, false, is returned for failure. Reasons for failure include not finding a valid partition, not finding a valid FAT file system in the specified partition or an I/O error."); } Serial.print("inizializzazione SD 3:"); Serial.println(pass3, BIN); if (!pass3){ Serial.println("Errore init 3:\nReasons for failure include \a fileName contains an invalid DOS 8.3 file name, the FAT volume has not been initialized, a file is already open, the file already exists, the root directory is full or an I/O error."); } return pass1 && pass2 && pass3;}